FORDIGRAPH Security Levels
Documents can be classified according to the security level appropriate to their level of confidentiality. DIN 66399 defines seven security levels and provides recommendations on how to destroy a document assigned to each of these categories, whereby the higher the security level, the smaller the shred size of the strips or particles.
For high volumes, as in the case of e.g. high-capacity shredders it is possible to achieve a higher security level by additional measures, such as mixing or compacting the strips or particles.